Foldable Display Arc Geometry for Lower Panel Bending Stress

The patent applies curvature principles by designing the display panel to form a semicircular arc with a specific radius of curvature when bent inside the housing. This controlled curved configuration allows the display to be compacted into the housing volume while distributing the bending stress along the arc, reducing peak stress concentrations that would occur with sharp folds or irregular bending paths.

The patent utilizes a semicircular arc configuration with a defined radius when the display panel is extended outside the housing. This controlled curvature allows the display to achieve full extension length while maintaining a predictable stress distribution pattern, preventing excessive bending stress by avoiding sharp angular bends and ensuring the panel follows a smooth arc path during deployment.

The patent specifies a particular radius of curvature parameter for the semicircular arc that the display panel forms during bending. By carefully selecting and controlling this radius parameter, the design achieves an optimal balance: the radius is small enough to allow compact accommodation within the housing volume, yet large enough to keep the bending stress below the failure threshold of the display panel materials, thereby preserving panel durability.

The patent defines a specific radius of curvature parameter that is optimized for the extension configuration. This radius is large enough to minimize bending stress and protect panel durability during deployment, yet the overall semicircular arc geometry is configured to fit within the available extension space, ensuring the display can achieve its full intended length when extended outside the housing.